Uniform decay for a plate equation partially dissipative. - Higidio Portillo Oquendo (Appl. Math. Comput., 2003)

Frictional versus Viscoelastic Damping in a Semilinear Wave Equation. - Marcelo Moreira Cavalcanti; Higidio Portillo Oquendo (SIAM J. Control. Optim., 2003)

Optimal decay for coupled waves with Kelvin-Voigt damping. - Higidio Portillo Oquendo; Patricia Sánez Pacheco (Appl. Math. Lett., 2017)

Shearing Viscoelasticity in Partially Dissipative Timoshenko-Boltzmann Systems. - Eduardo H. Gomes Tavares; Marcio A. Jorge Silva; To Fu Ma; Higidio Portillo Oquendo (SIAM J. Math. Anal., 2024)